Live R Coding Session

Author
Affiliation

Jeremy Springman

University of Pennsylvania

Published

July 22, 2024

Introducing the RStudio Layout

Basic layout

  • Rstudio contains 4 panes: source, console, environment, and viewer
  • The left pane is the source where you write code
  • Try typing 2 + 2 into the source panel and hitting ENTER
    • The console panel in the bottom-left will return a value of 4
  • The top-right includes the Environment panel
    • This contains information about any objects that you load into your environment
    • Type sum = 2 + 2 into the source and hit ENTER
    • The object sum should appear in your environment
  • The bottom-right includes the Viewer panel, where you will be able to see graphics that you generate

Reading Data into R

Index Variables

Additive Scale

Averaged Z-Scores

Interaction Terms

Differences across groups

Binary


  Year I  Year II Year III 
     327      277      221 

  0   1 
327 221
tinytable_2qshenw6e4hj8h16djfz
Bivariate Multivariate Interaction
(Intercept) -0.150*** (0.036) -0.142** (0.051) -0.184** (0.061)
moved 0.234*** (0.045) 0.273*** (0.055) 0.334*** (0.073)
year -0.046 (0.055) 0.038 (0.086)
moved × year -0.142 (0.112)
Num.Obs. 809 534 534
R2 Adj. 0.032 0.045 0.046

Continuous-ish


  0   1   2 
327 277 221
tinytable_3f3ft9kjmmw3wt551h6s
Bivariate Multivariate Interaction
(Intercept) -0.150*** (0.036) -0.121** (0.045) -0.169** (0.056)
moved 0.234*** (0.045) 0.228*** (0.045) 0.301*** (0.067)
year -0.029 (0.027) 0.019 (0.042)
moved × year -0.080 (0.054)
Num.Obs. 809 809 809
R2 Adj. 0.032 0.032 0.033

More complex


  0   1   2 
327 277 221
tinytable_tcrozsle53zc77n2mlal
Bivariate Multivariate Interaction
(Intercept) -0.150*** (0.036) -0.114* (0.046) -0.184** (0.060)
moved 0.234*** (0.045) 0.232*** (0.045) 0.334*** (0.072)
year2 -0.060 (0.049) 0.077 (0.092)
year3 -0.053 (0.054) 0.038 (0.085)
moved × year2 -0.194+ (0.109)
moved × year3 -0.142 (0.110)
Num.Obs. 809 809 809
R2 Adj. 0.032 0.031 0.033

Differences over time

Cross-Sectional

tinytable_72lc6yphoiqrv1xgoqz1
Bivariate Multivariate Interaction
(Intercept) -0.150*** (0.026) -0.148*** (0.030) -0.150*** (0.037)
moved 0.232*** (0.032) 0.232*** (0.032) 0.234*** (0.046)
time -0.004 (0.031) -0.001 (0.052)
moved × time -0.004 (0.065)
Num.Obs. 1634 1634 1634
R2 Adj. 0.030 0.030 0.029

Fixed Effects

tinytable_r9mltm4pe6i1n4i5gjaq
Simple Fixed Effects Interaction
(Intercept) 0.005 (0.022) -0.330 (0.332) -0.374 (0.333)
time -0.005 (0.031) -0.002 (0.023) 0.000 (0.040)
moved 0.044 (0.470)
moved × time -0.004 (0.049)
Num.Obs. 1634 1634 1634
R2 Adj. -0.001 0.442 0.442